Early prevention and control of fruit tree diseases and insect pests

The prevention and control of fruit trees and insect pests in spring is the key to the prevention and control of fruit trees throughout the year. Through the prevention and control of pests and diseases in spring, it can effectively control the density of overwintering insects and the harmful insects and mites, and reduce the damage of pests and diseases to fruit trees. In the spring, we must strengthen the prevention and control of apple tree rot, pear mites, mites, mites and mites. The main measures are as follows:

Check the garden to scrape. Mid-March is the peak period of apple tree rot disease. Fruit farmers should check the occurrence of diseases in the whole park from the end of February, and find that the lesions are scraped in time. After scraping, apply 843 rehabilitative liquid until the end of April.

Budding spray. When the fruit tree is germinated, spray 5 degrees of stone sulfur mixture. The best time is from the end of March to April 10, mainly to prevent winter worms or nymphs such as aphids, mites and persimmons on pears, apples, pears, peaches and apricots.

Flowering prevention chafer. During the flowering period of the fruit tree, the armor is sprayed 500 times under the canopy, and the chafer is shaken down under the tree every day before 4 pm, causing it to die and die.

Suitable for mites. Peach, pear, apricot and other tree species can be sprayed with 10% imidacloprid 4000 times + 5% high-alkali 1000 times spray to prevent aphids and leaf curlers.

Prompt against flooding. When the artichokes are flowering, the apples, peaches and apricots are sprayed with a biological agent of 1.8% alizarin 5000 times, which is the best for controlling mites.

Strict control of rot disease. After the discovery of rot disease, you can use the tree guard general 1000 times liquid to spray the trunk and branches of the whole garden. In severe cases, you can use the tree guard general to apply the tree body disease to quickly form a protective film, suffocating to kill the bacteria, which can hinder other viruses from landing on the tree. The body is multiplied, so that the fruit tree life command system wakes up early. At the same time, it is also necessary to irrigate water and fertilizer in time to improve the disease resistance of fruit trees.

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